Refrigerating system



Feb. 16 1926. 1573 19 5 L. L. SCOTT R EFRIGERATING SYSTEM Filed June 8,1922 FIG. 1.

O OOOOOO OOOOOOOO ATTORNEY Patented Feb. 16, 1926.

PATENT OFFICE.

LEWIS L. SCOTT, OF ST. LOUIS, MISSOURI.

REFRIGERATING SYSTEM.

7 Application filed June 8,

To all whom it my concern Be it known that I, LEWIS L. Soon. a

. citizen of the United States. residing in the city of St. Louis andState of Missouri. have invented a new and useful Improvement inRefrigerating Systems, of which the following is a specification.

The invention relates to mechanical domcstic refrigerating units whichare usually operated by an electric motor. The object of the inventionis to provide a condenser which is arranged to be either water or aircooled or both and which can he locatefl at some point away from thebalance of the apparatus and to provide a valve for controlling thewater for cooling the condenser. which valve is opened and closedaccording to the temperature of the condenser coils and to so locate thevalve so that any leak past the stem of the valve will he caught in thewater container which carries the; water for cooling the condensercoils.

In the accompanying drawings Figure 1 is a diagram of the entirerefrigerating system. Figure 2 s a top view of a portion of thecondenser coils. showing a section of the water control valve and thethermostat which operates the valve.

Referring now to the drawings the numeral 1 indicates an air cooled.compressor, 2 is a motor-for driving the compressor, 3 is the. dischargepipe running to thetop coil of the condenser 4. which condenser isformed of tubing in an elongated O shape. The coils are separated by thespacers 5. The coilsare all in series and the bottom coil connects tothe expansion valve 6. which valve '6 connects to the expansion coil 7and vfrom coil 7 to the intake piping 8 -of the compressor. Arectangular pan 9 surrounds the lower coils of the condenser 4 and isadapted to receive water from the supply pipe 10 through valve 11 andpipe 12. The numeral 13 indicatesan overflow pipe which may be run'toany convenient point. 14 is a piece of thermostatic metal which is attached to the upper coil of the condenser 4.

' One end of the thermostatic metal is connected to the stem 15 of thewater control 1922. Serial No. 566,802.

valve. which valve is adapted to be opened or closed according to thetemperature of the condenser. It will be noted that thewater valve is solocated thatany leak that might take place around the stem of said valvewill be caughtin the pan 9. The condenser 4- is so designed that it willcondense the refrigerant, which is usually sulphurdioxide. either by aircooling alone or by air and water cooling. \Vhere water is used toassist in condensing, it is not necessary to provide a safety device toshut down the motor in case the water supply should fail, because thecondenser is so designed that the air cooling will prevent excessivepressure in the refrigerating line. I have found that where air coolingis used alone, it is not effective in very Warm weather and veryundesirable in apartments where there is no basement to locate thecondenser and other parts. Air cooling is'vcry desirable for the coolerweather because of the saving in water and because the freezing troublewith water is eliminated. By arranging the conondensing the refrigeranthaving coils arranged one above the other, a box-like pan arrangedaround the lower coils of the condenser. a valve located above said panthrough which water is supplied to the pan for cooling coils located inthe pan, a valve member having a stem slidably mounted in said valve forcontrolling its operation, a thermostatic bar rigidly secured at one endto a' coil of said condenser and having a movable end secured to the endof said stem, whereby, according to the temperature around thecondenser, said stem will be moved by the thermostatic bar to controlthe flow of water throughsuid valve to said boxlike pan. is

1 Signed at St. Louis this 5th day of June,

LEWIS L. SCOTT.

